extern int sys_fork();
extern int sys_print();
extern int sys_pause();

fn_ptr sys_call_table[72] = {0, 0, sys_fork, sys_print, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, sys_pause};